Cylindrical Tubular Heat Exchanger Type 2

摘要

In accordance with the present invention, there is provided a tubular heat exchanger wherein a central tube is employed to enclose an internal heated fluid which ascends inside the central tube. The heated fluid is then radially disbursed as it converges toward the internal surface of a top cover of the heat exchanger assembly, being forced outwardly under the top flange by the updraft force of the heated fluid, which forces the heated fluid downwardly apportioning the heated fluid around equally spaced axially arranged heat transfer tubes surrounded by an outer tube which are in sealed engagement with the top flange and attach at the bottom in sealing engagement with the exhaust collection manifold. The heated fluid descends around the tubes and enters an exhaust manifold exiting through an exhaust pipe. The heat transfer fluid enters a lower plenum and flows around the heat exchanger core into an upper plenum.

主权项

1. A cylindrical tubular heat exchanger type 2 for more efficient heat exchange and better serviceability comprising:
means for encompassing the heat source, combustion area; means for enclosing the ascending inner portion of the heat transfer fluid, transferring heat from the descending heated fluid surrounding the outside of the heat exchange tubes into the ascending heat transfer fluid which is inside the heat exchange tubes via conduction through the tube walls; means for covering and sealing the outer tube, and providing a secondary heat exchange area, the top mounting area for the heat exchange tubes, and a sealable mounting flange for the removable top cover. when removed allows internal access into the outer tube to remove the heat exchange tubes for cleaning, rigidly connected to said means for enclosing the ascending inner portion of the heat transfer fluid, transferring heat from the descending heated fluid surrounding the outside of the heat exchange tubes into the ascending heat transfer fluid which is inside the heat exchange tubes via conduction through the tube walls, and removably connected to said means for encompassing the heat source, combustion area; means for providing a sealable cover and an initial heat exchange area mounted to the top flange which allows access to internal surfaces when removed, sealably fastened to said means for covering and sealing the outer tube, and providing a secondary heat exchange area, the top mounting area for the heat exchange tubes, and a sealable mounting flange for the removable top cover when removed allows internal access into the outer tube to remove the heat exchange tubes for cleaning; means for enclosing the internal heat exchange area around the heat exchange tubes, as well providing an additional heat exchange area on its outer surface. also a connecting link between the removable top flange and the exhaust collection manifold, rigidly connected to said means for covering and sealing the outer tube, and providing a secondary heat exchange area, the top mounting area for the heat exchange tubes, and a sealable mounting flange for the removable top cover. when removed allows internal access into the outer tube to remove the heat exchange tubes for cleaning; means for collecting and recombining the spent heated fluid exiting the heat exchange tubes and directing the spent heated fluid into the exhaust outlet pipe, rigidly connected to said means for enclosing the internal heat exchange area around the heat exchange tubes, as well providing an additional heat exchange area on its outer surface. also a connecting link between the removable top flange and the exhaust collection manifold, rigidly connected to said means for enclosing the ascending inner portion of the heat transfer fluid, transferring heat from the descending heated fluid surrounding the outside of the heat exchange tubes into the ascending heat transfer fluid which is inside the heat exchange tubes via conduction through the tube walls, and rigidly connected to said means for encompassing the heat source, combustion area; means for venting spent heated fluid, normally combustion exhaust gases, from the exhaust collection manifold into the atmosphere, rigidly connected to said means for collecting and recombining the spent heated fluid exiting the heat exchange tubes and directing the spent heated fluid into the exhaust outlet pipe; means for enclosing a space under the exhaust collection manifold for distributing the incoming air or other medium to be utilized as a heat transfer fluid., rigidly fastened to said means for venting spent heated fluid, normally combustion exhaust gases, from the exhaust collection manifold into the atmosphere; means for connecting exhaust collection manifold to exhaust outlet pipes and lower plenum as well as to the lower flange portion of the outer heat shield assembly, rigidly fastened to said means for enclosing a space under the exhaust collection manifold for distributing the incoming air or other medium to be utilized as a heat transfer fluid, rigidly fastened to said means for venting spent heated fluid, normally combustion exhaust gases, from the exhaust collection manifold into the atmosphere, and rigidly connected to said means for collecting and recombining the spent heated fluid exiting the heat exchange tubes and directing the spent heated fluid into the exhaust outlet pipe; means for attaching the top cover to the removable top flange, rigidly connected to said means for providing a sealable cover and an initial heat exchange area mounted to the top flange which allows access to internal surfaces when removed, and rigidly connected to said means for covering and sealing the outer tube, and providing a secondary heat exchange area, the top mounting area for the heat exchange tubes, and a sealable mounting flange for the removable top cover when removed allows internal access into the outer tube to remove the heat exchange tubes for cleaning; means for separating the bottom of the central tube from the lower plenum, mounting optional fuel nozzle and ignition electrodes or inlet pipe, and provides for air inlet holes for combustion air; means for providing an inlet passage for external combustion or gasifier fluid into bottom of the central tube through the separator plate, rigidly connected to said means for enclosing a space under the exhaust collection manifold for distributing the incoming air or other medium to be utilized as a heat transfer fluid, and rigidly connected to said means for encompassing the heat source, combustion area; means for concentrically enclosing the area around the outer tube which provides an annular internal space for the ascending heat transfer fluid while minimizing heat loss; means for attaching the exhaust outlet pipes to the end flanges and the lower plenum., rigidly connected to said means for connecting exhaust collection manifold to exhaust outlet pipes and lower plenum as well as to the lower flange portion of the outer heat shield assembly, rigidly connected to said means for enclosing a space under the exhaust collection manifold for distributing the incoming air or other medium to be utilized as a heat transfer fluid, and rigidly connected to said means for venting spent heated fluid, normally combustion exhaust gases, from the exhaust collection manifold into the atmosphere; means for enclosing and directing the outer portion of the heat exchange fluid from the lower plenum, around the exhaust collection manifold, and into the space between the outer tube and outer heat shield, rigidly connected to said means for concentrically enclosing the area around the outer tube which provides an annular internal space for the ascending heat transfer fluid while minimizing heat loss, rigidly fastened to said means for connecting exhaust collection manifold to exhaust outlet pipes and lower plenum as well as to the lower flange portion of the outer heat shield assembly, and rigidly connected to said means for enclosing a space under the exhaust collection manifold for distributing the incoming air or other medium to be utilized as a heat transfer fluid; means for enclosing the flow path around the exhaust collection manifold, the outer tube, the top flange, and the top cover to prevent heat loss, rigidly connected to said means for enclosing and directing the outer portion of the heat exchange fluid from the lower plenum, around the exhaust collection manifold, and into the space between the outer tube and outer heat shield, and rigidly connected to said means for concentrically enclosing the area around the outer tube which provides an annular internal space for the ascending heat transfer fluid while minimizing heat loss; means for final heat exchange space and recombining the internal and external portions of the exiting heat exchange fluid, rigidly connected to said means for enclosing the flow path around the exhaust collection manifold, the outer tube, the top flange, and the top cover to prevent heat loss, and rigidly connected to said means for concentrically enclosing the area around the outer tube which provides an annular internal space for the ascending heat transfer fluid while minimizing heat loss; means for initiating updraft in the central tube and/or providing inlet air for the fuel mixture to be burned in the optional combustion process, angularly encircling to said means for providing an inlet passage for external combustion or gasifier fluid into bottom of the central tube through the separator plate; and means for fastening the lower flange portion of the outer heat shield assembly to the top of the end flanges of the exhaust collection manifold, rigidly connected to said means for enclosing and directing the outer portion of the heat exchange fluid from the lower plenum, around the exhaust collection manifold, and into the space between the outer tube and outer heat shield, and rigidly connected to said means for connecting exhaust collection manifold to exhaust outlet pipes and lower plenum as well as to the lower flange portion of the outer heat shield assembly.